BE351208A - - Google Patents

Info

Publication number
BE351208A
BE351208A BE351208DA BE351208A BE 351208 A BE351208 A BE 351208A BE 351208D A BE351208D A BE 351208DA BE 351208 A BE351208 A BE 351208A
Authority
BE
Belgium
Prior art keywords
observer
glasses
desc
mirror
text
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE351208A publication Critical patent/BE351208A/fr

Links

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/16Signs formed of or incorporating reflecting elements or surfaces, e.g. warning signs having triangular or other geometrical shape

Landscapes

  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
BE351208D BE351208A (cg-RX-API-DMAC10.html)

Publications (1)

Publication Number Publication Date
BE351208A true BE351208A (cg-RX-API-DMAC10.html)

Family

ID=26184

Family Applications (1)

Application Number Title Priority Date Filing Date
BE351208D BE351208A (cg-RX-API-DMAC10.html)

Country Status (1)

Country Link
BE (1) BE351208A (cg-RX-API-DMAC10.html)

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